The technology scales to accommodate the distributed simulation of
large-scale systems of varying fidelity – including, for example: (a)
many high fidelity, autonomously controlled vehicle models being
regulated by traffic control models in modelled urban areas, and (b)
thousands of communicating low fidelity vehicle models containing high
fidelity DSRC and MAC (mobile WiFi) models operating cooperatively in
high density, city traffic.

High fidelity models – such as, a vehicle’s detailed control and
plant models - will be simulated on separate cores. Some of the low
fidelity models – such as, point-physics models of vehicles - can be
aggregated by the many hundreds and simulated, as an aggregate, on a
single core. These modes of simulation of mixed high and low
fidelity models comprising a system model are typical.

Modelling and Simulating Automotive Systems

For the automotive industry, the speed advantage and scalability of EST’s distributed modelling and high performance simulation technology enables the rapid investigation of active safety systems – such as, adaptive cruise control in car following scenarios, stability control in SUV and truck roll-over scenarios, and collision avoidance amongst communicating vehicles.

With the advent of the ISO 26262 Functional Safety standard and its beginning adoption by the automotive industry, the need for full vehicle verification along with the requirement to demonstrate that vehicles will not cause damage to humans, property and the environment (due to emissions and fuel consumption), necessitate the adoption of full model based design and verification through the supply chain.

The ESSE Systems Workbench provides a modelling system that extends high fidelity systems modelling to high fidelity systems-of-systems modelling, that can:

model the complete behaviour of an individual, human driven, vehicle

scale to model many vehicles, and hence all specified traffic level effects

model the engine emissions of those vehicles

accommodate the simulation of various models employed in building systems ranging from abstract mathematical models, to timing accurate operational models executing software, and inaccurate software in the loop type models

model wireless communications between many vehicle models with the required detail to make empirically justified claims about the safety of systems relying on those communications, and

support the EST un-V process, as well as, any of the commonly employed engineering processes, such as the V process